(E(-),E(+))-PAIR ANNIHILATION IN THE POSITRONIUM MOLECULE PS(2)

被引：35

作者：

FROLOV, AM

KRYUCHKOV, SI

SMITH, VH

机构：

[1] QUEENS UNIV, DEPT CHEM, KINGSTON, ON K7L 3N6, CANADA

[2] RUSSIAN ACAD SCI, INST SPECT, TROITSK 142092, RUSSIA

[3] IV KURCHATOV ATOM ENERGY INST, MOSCOW 123182, RUSSIA

来源：

PHYSICAL REVIEW A | 1995年 / 51卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.51.4514

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The (e-,e+)-pair annihilation in the bound 1S0 state of the Ps2 molecule (e-e+e-e+) is studied. It is shown that the expectation values of the two-, three-, and four-body Dirac δ functions δ+-, δ++- (δ+ -), and δ++ - determine the photonless, one- and many-photon annihilation rates, i.e., the values of Γ0γ, Γ1γ, and Γnγ, where n2. The appropriate analytical expressions are presented together with numerical estimates. As expected, the two-photon annihilation process dominates. © 1995 The American Physical Society.

引用

页码：4514 / 4519

页数：6

共 31 条

[1] POSITRONIUM MOLECULES - THEIR EXISTENCE, FORMATION AND ANNIHILATION [J].